$ git clone -n https://src.fedoraproject.org/rpms/xfce4-volumed.git /var/lib/mock/f45-build-38834-728/root/chroot_tmpdir/scmroot/xfce4-volumed
Cloning into '/var/lib/mock/f45-build-38834-728/root/chroot_tmpdir/scmroot/xfce4-volumed'...
$ git fetch origin 91b27d86385ec0c510ddaa497fd8c2178e70b87c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/xfce4-volumed
 * [new ref]         91b27d86385ec0c510ddaa497fd8c2178e70b87c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 91b27d8 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild